[PATCH v10 0/4] Prepare for upcoming Casefolding/Encryption patches

[Daniel Rosenberg <drosen@google.com>]

This lays the ground work for enabling casefolding and encryption at the
same time for ext4 and f2fs. A future set of patches will enable that
functionality.

These unify the highly similar dentry_operations that ext4 and f2fs both
use for casefolding. In addition, they improve d_hash by not requiring a
new string allocation, and ensure we don't attempt to casefold the no-key
token of an encrypted filename.

Daniel Rosenberg (4):
  unicode: Add utf8_casefold_hash
  fs: Add standard casefolding support
  f2fs: Use generic casefolding support
  ext4: Use generic casefolding support

 fs/ext4/dir.c           | 64 +--------------------------
 fs/ext4/ext4.h          | 12 ------
 fs/ext4/hash.c          |  2 +-
 fs/ext4/namei.c         | 20 ++++-----
 fs/ext4/super.c         | 12 +++---
 fs/f2fs/dir.c           | 83 ++++-------------------------------
 fs/f2fs/f2fs.h          |  4 --
 fs/f2fs/super.c         | 10 ++---
 fs/f2fs/sysfs.c         | 10 +++--
 fs/libfs.c              | 96 +++++++++++++++++++++++++++++++++++++++++
 fs/unicode/utf8-core.c  | 23 +++++++++-
 include/linux/f2fs_fs.h |  3 --
 include/linux/fs.h      | 16 +++++++
 include/linux/unicode.h |  3 ++
 14 files changed, 174 insertions(+), 184 deletions(-)

-- 
2.27.0.212.ge8ba1cc988-goog